// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

// This API is EXPERIMENTAL.

#pragma once

#include <vector>

#include <google/protobuf/any.pb.h>

#include "arrow/compute/type_fwd.h"
#include "arrow/engine/substrait/type_fwd.h"
#include "arrow/engine/substrait/visibility.h"
#include "arrow/type_fwd.h"

namespace arrow {
namespace engine {

class ARROW_ENGINE_EXPORT ExtensionProvider {
 public:
  static std::shared_ptr<ExtensionProvider> kDefaultExtensionProvider;
  virtual ~ExtensionProvider() = default;
  virtual Result<DeclarationInfo> MakeRel(const std::vector<DeclarationInfo>& inputs,
                                          const google::protobuf::Any& rel,
                                          const ExtensionSet& ext_set) = 0;
};

}  // namespace engine
}  // namespace arrow
